Re-arrange folders and files for 5.0 tools

This commit is contained in:
Apprentice Alf
2012-03-01 07:31:47 +00:00
parent 93f02c625a
commit 882edb6c69
61 changed files with 0 additions and 113 deletions

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@@ -0,0 +1,50 @@
Kindle for Android
------------------
Kindle for Android uses a different scheme to generate its books specific PIDs than Kindle for PC, Kindle for iPhone/iPad, and standalone Kindles.
Unfortunately, K4Android uses an "account secrets" file that would only be available if the device were jail-broken and even then someone would have to figure out how to decode this secret information in order to reverse the process.
Instead of trying to calculate the correct PIDs for each book from this primary data, "Me" (a commenter who posted to the ApprenticeAlf site) came up with a wonderful idea to simply modify the Kindle 3 for Android application to store the PIDs it uses to decode each book in its "about activity" window. This list of PIDS can then be provided to MobiDeDRM.py, which in its latest incarnations allows a comma separated list of pids to be passed in, to successfully remove the DRM from that book. Effectively "Me" has created an "Unswindle" for the Kindle for Android 3 application!
Obviously, to use "Me"'s approach, requires an Android Developer's Certificate (to sign the modified application) and access to and knowledge of the developer tools, but does not require anything to be jail-broken.
This is a copy the detailed instructions supplied by "Me" to the ApprenticeAlf blog in the comments. The kindle3.patch described below is included in this folder in the tools:
From the ApprenticeAlf Comments:
"Me" writes:
A better solution seems to create a patched version of the Kindle apk which either logs or displays its PID. I created a patch to both log the pid list and show it in the Kindle application in the about activity screen. The pid list isnt available until the DRMed book has been opened (and the list seem to differ for different books).
To create the patched kindle apk a certificate must be created (http://developer.android.com/guide/publishing/app-signing.html#cert) and the apktool must be build from source (all subprojects) as long as version 1.4.2 isnt released (http://code.google.com/p/android-apktool/wiki/BuildApktool).
These are the steps to pull the original apk from the Android device, uninstall it, create a patched apk and install that (tested on a rooted device, but I think all steps should also work on non-rooted devices):
adb pull /data/app/com.amazon.kindle-1.apk kindle3.apk
adb uninstall com.amazon.kindle
apktool d kindle3.apk kindle3
cd kindle3
patch -p1 < ../kindle3.patch
cd ..
apktool b kindle3 kindle3_patched.apk
jarsigner -verbose -keystore kindle.keystore kindle3_patched.apk kindle
zipalign -v 4 kindle3_patched.apk kindle3_signed.apk
adb install kindle3_signed.apk
kindle3.patch (based on kindle version 3.0.1.70) is available on pastebin:
http://pastebin.com/LNpgkcpP
Have fun!
Comment by me — June 9, 2011 @ 9:01 pm | Reply
Hi me,
Wow! Great work!!!!
With your patch, you have created the equivalent of Unswindle for the Kindle for Android app and it does not even require jailbreaking!
Very nice work indeed!
Comment by some_updates — June 10, 2011 @ 4:28 am | Reply

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diff -ru kindle3_orig/smali/com/amazon/kcp/application/AndroidDeviceInformationProvider.smali kindle3/smali/com/amazon/kcp/application/AndroidDeviceInformationProvider.smali
--- kindle3_orig/smali/com/amazon/kcp/application/AndroidDeviceInformationProvider.smali
+++ kindle3/smali/com/amazon/kcp/application/AndroidDeviceInformationProvider.smali
@@ -11,6 +11,8 @@
.field private security:Lcom/mobipocket/android/library/reader/AndroidSecurity;
+.field private pidList:Ljava/lang/String;
+
# direct methods
.method public constructor <init>(Lcom/mobipocket/android/library/reader/AndroidSecurity;Lcom/amazon/kcp/application/AndroidDeviceType;)V
@@ -28,6 +30,10 @@
.line 26
iput-object p2, p0, Lcom/amazon/kcp/application/AndroidDeviceInformationProvider;->deviceType:Lcom/amazon/kcp/application/AndroidDeviceType;
+ const-string v0, "Open DRMed book to show PID list."
+
+ iput-object v0, p0, Lcom/amazon/kcp/application/AndroidDeviceInformationProvider;->pidList:Ljava/lang/String;
+
.line 27
new-instance v0, Ljava/lang/StringBuilder;
@@ -175,4 +181,26 @@
move-result-object v0
return-object v0
+.end method
+
+.method public getPidList()Ljava/lang/String;
+ .locals 1
+
+ .prologue
+ .line 15
+ iget-object v0, p0, Lcom/amazon/kcp/application/AndroidDeviceInformationProvider;->pidList:Ljava/lang/String;
+
+ return-object v0
+.end method
+
+.method public setPidList(Ljava/lang/String;)V
+ .locals 0
+ .parameter "value"
+
+ .prologue
+ .line 11
+ iput-object p1, p0, Lcom/amazon/kcp/application/AndroidDeviceInformationProvider;->pidList:Ljava/lang/String;
+
+ .line 12
+ return-void
.end method
diff -ru kindle3_orig/smali/com/amazon/kcp/application/IDeviceInformationProvider.smali kindle3/smali/com/amazon/kcp/application/IDeviceInformationProvider.smali
--- kindle3_orig/smali/com/amazon/kcp/application/IDeviceInformationProvider.smali
+++ kindle3/smali/com/amazon/kcp/application/IDeviceInformationProvider.smali
@@ -27,3 +27,9 @@
.method public abstract getPid()Ljava/lang/String;
.end method
+
+.method public abstract getPidList()Ljava/lang/String;
+.end method
+
+.method public abstract setPidList(Ljava/lang/String;)V
+.end method
\ No newline at end of file
diff -ru kindle3_orig/smali/com/amazon/kcp/info/AboutActivity.smali kindle3/smali/com/amazon/kcp/info/AboutActivity.smali
--- kindle3_orig/smali/com/amazon/kcp/info/AboutActivity.smali
+++ kindle3/smali/com/amazon/kcp/info/AboutActivity.smali
@@ -32,9 +32,11 @@
invoke-direct {v6, v1}, Ljava/util/ArrayList;-><init>(I)V
.line 36
- const v1, 0x7f0b0005
+ invoke-static {}, Lcom/amazon/kcp/application/DeviceInformationProviderFactory;->getProvider()Lcom/amazon/kcp/application/IDeviceInformationProvider;
- invoke-virtual {p0, v1}, Lcom/amazon/kcp/info/AboutActivity;->getString(I)Ljava/lang/String;
+ move-result-object v0
+
+ invoke-interface {v0}, Lcom/amazon/kcp/application/IDeviceInformationProvider;->getPidList()Ljava/lang/String;
move-result-object v1
diff -ru kindle3_orig/smali/com/amazon/system/security/Security.smali kindle3/smali/com/amazon/system/security/Security.smali
--- kindle3_orig/smali/com/amazon/system/security/Security.smali
+++ kindle3/smali/com/amazon/system/security/Security.smali
@@ -884,6 +884,15 @@
.line 332
:cond_1
+
+ const-string v1, "PID list"
+ invoke-static {}, Lcom/amazon/kcp/application/DeviceInformationProviderFactory;->getProvider()Lcom/amazon/kcp/application/IDeviceInformationProvider;
+ move-result-object v0
+ invoke-static {v7}, Ljava/util/Arrays;->toString([Ljava/lang/Object;)Ljava/lang/String;
+ move-result-object v2
+ invoke-interface {v0, v2}, Lcom/amazon/kcp/application/IDeviceInformationProvider;->setPidList(Ljava/lang/String;)V
+ invoke-static {v1, v2}, Landroid/util/Log;->e(Ljava/lang/String;Ljava/lang/String;)I
+
return-object v7
:cond_2